Patent US5199879A successfully refreshed from Google Patents.
Patent US3722845A successfully refreshed from Google Patents.
US3722845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground mounting base for central air conditioner heat exchanger units
Assignee: Individual
•
Filing: 1971-01-22
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Granted: 1973-03-27
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Expires: 1991-01-22
Abstract
Abstract A ground mounting base is disclosed for use with externally mounted heat exchanger units such as the outdoor condenser unit commonly used in residential central air conditioning systems. The base is light weight but strong and comprises a pad of concrete employing vermiculite as its primary aggregate, a wire screening reinforcement, and a top layer of sand aggregate concrete. A bubble level is affixed at the top surface to aid in leveling the base and upward projecting pre-set mounting bolts affixed therein for receiving and affixing the heat exchanger to the base. The base also preferably has inclined side walls inclining outward from the top to the bottom to aid in preventing horizontal movement after implacement.
Inventors
- 👤 R Unger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:56
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/06; F24F1/46; F24F1/48; F24F1/50; F24F1/0003; F24F1/56
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
150 words
A pre-manufactured heat exchanger unit ground base comprising: a unitary structure having a generally parallel and generally flat top and bottom surfaces; said structure having metal internal reinforcements positioned between its top and bottom surfaces; said structure being composed primarily of concrete employing vermiculite as its primary, by volume, aggregate, and having said vermiculite concrete form said bottom surface and, at least, the major part of said structure''s thickness above said bottom surface; said base formed with a thin layer of hard concrete at its top surface; said base defining inclined side walls between the marginal segments of said top and bottom surfaces which walls are inclined outward from the marginal top surface to the bottom surface, and said base having affixed therein bolts for affixing the heat exchanger unit to said base which bolts are head mounted into said base with stems that project outwardly from said top surface.
Claim 2
Dependent Claim
150 words
A pre-manufactured heat exchanger unit ground base comprising: a unitary structure having a generally parallel and generally flat top and bottom surfaces; said structure having metal internal reinforcements positioned between its top and bottom surfaces; said structure being composed primarily of concrete employing vermiculite as its primary, by volume, aggregate, and having said vermiculite concrete form said bottom surface and, at least, the major part of said structure''s thickness above said bottom surface; said base formed with a thin layer of hard concrete at its top surface; said base defining inclined side walls between the marginal segments of said top and bottom surfaces which walls are inclined outward from the marginal top surface to the bottom surface, and said base having affixed therein bolts for affixing the heat exchanger unit to said base which bolts are head mounted into said base with stems that project outwardly from said top surface.
Claim 3
Dependent Claim
39 words
The heat exchanger unit ground base as defined in claim 1, wherein: said base has, affixed on its upper surface, a bubble level to aid in leveling during installation of the base and of any heat exchanger unit thereon.
Claim 4
Dependent Claim
163 words
A pre-manufactured heat exchanger unit ground base comprising: a unitary structure having a generally parallel and generally flat top and bottom surfaces; said structure having metal internal reinforcements positioned between its top and bottom surfaces; said structure being composed primarily of concrete employing vermiculite as its primary, by volume, aggregate, and having said vermiculite concrete form said bottom surface and, at least, the major part of said structure''s thickness above said bottom surface; said base formed with a thin layer of hard concrete at its top surface; said concrete being formed with dry weight portions of approximately two uNits of vermiculite to five units of sand to ten units of cement; and said reinforcement is a generally planar metal screen affixed generally parallel to and approximately equidistant from said top and bottom surfaces and comprising an expanded cut-and-formed metal sheet which sheet defines a plurality of small openings bounded by metal ribbon segments whose planes are inclined to the plane of the screen.
Claim 5
Dependent Claim
163 words
A pre-manufactured heat exchanger unit ground base comprising: a unitary structure having a generally parallel and generally flat top and bottom surfaces; said structure having metal internal reinforcements positioned between its top and bottom surfaces; said structure being composed primarily of concrete employing vermiculite as its primary, by volume, aggregate, and having said vermiculite concrete form said bottom surface and, at least, the major part of said structure''s thickness above said bottom surface; said base formed with a thin layer of hard concrete at its top surface; said concrete being formed with dry weight portions of approximately two uNits of vermiculite to five units of sand to ten units of cement; and said reinforcement is a generally planar metal screen affixed generally parallel to and approximately equidistant from said top and bottom surfaces and comprising an expanded cut-and-formed metal sheet which sheet defines a plurality of small openings bounded by metal ribbon segments whose planes are inclined to the plane of the screen.
Claim 6
Dependent Claim
113 words
The ground base for a heat exchanger unit as defined in claim 3, wherein: said base has, affixed on its upper surface, a bubble level (26) to aid in leveling during installation; said base defines inclined side walls (30) between the marginal segments of said top and bottom surfaces which walls are inclined outward from the marginal top surface to the bottom surface; said base has affixed therein means (24) for affixing the unit to said base which means project outwardly from said top surface; said means for affixing are bolts, head mounted into said base with stems projecting out of the top surface; and said base is dip-sealed in a concrete sealant.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |